Calcium aluminate cement-corundum castable taking water-soluble calcium chloride as additive and method thereof
A calcium aluminate cement and castable technology, applied in the field of refractory materials, can solve problems such as no retrieval, and achieve the effects of avoiding voids and cracks, buffering thermal stress, and increasing the uniformity of contact area and distribution.
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[0031] Example 1
[0032] The distribution ratio of each group is (mass percentage) 70% of tabular corundum aggregate, 19.5% of tabular corundum fine powder, 5% of activated alumina powder, 5% of calcium aluminate cement, 0.5% of water reducing agent, and the quality of each of the above raw materials The sum of 0.5% water-soluble CaCl 2 (Additional additives);
[0033] a. Mix tabular corundum aggregate and fine powder, activated alumina powder, calcium aluminate cement and water reducing agent according to the proportion in the formula, and premix the raw materials for use;
[0034] b, CaCl 2 Dissolve in water, stir until the solution is clear and transparent, let stand, cool to room temperature naturally, and set aside; the amount of water is CaCl 2 8 times of
[0035] c. Pour the material obtained in step a into the JJ-5 cement mortar mixer, dry mixing for 1 minute, first add the CaCl obtained in step b 2 Water solution, wet mixed for 3 minutes, then continue to add water and stir...
Example Embodiment
[0038] Example 2
[0039] The distribution ratio of each group is (mass percentage) 70% of tabular corundum aggregate, 19.5% of tabular corundum fine powder, 5% of activated alumina powder, 5% of calcium aluminate cement, 0.5% of water reducing agent, and the quality of each of the above raw materials 1.0% of the sum of water-soluble CaCl 2 (Additional additives);
[0040] a. Mix tabular corundum aggregate and fine powder, activated alumina powder, calcium aluminate cement and water reducing agent according to the proportion in the formula, and premix the raw materials for use;
[0041] b, CaCl 2 Dissolve in water, stir until the solution is clear and transparent, let stand, cool to room temperature naturally, and set aside; the amount of water is CaCl 2 4 times of
[0042] c. Pour the material obtained in step a into the JJ-5 cement mortar mixer, dry mixing for 1 minute, first add the CaCl obtained in step b 2 Water solution, wet mixed for 3 minutes, then continue to add water and s...
Example Embodiment
[0045] Example 3
[0046] The distribution ratio of each group is (mass percentage) 70% of tabular corundum aggregate, 19.5% of tabular corundum fine powder, 5% of activated alumina powder, 5% of calcium aluminate cement, 0.5% of water reducing agent, and the quality of each of the above raw materials The sum of 1.5% water-soluble CaCl 2 (Additional additives);
[0047] a. Mix tabular corundum aggregate and fine powder, activated alumina powder, calcium aluminate cement and water reducing agent according to the proportion in the formula, and premix the raw materials for use;
[0048] b, CaCl 2 Dissolve in water, stir until the solution is clear and transparent, let stand, cool to room temperature naturally, and set aside; the amount of water is CaCl 2 2.5 times of
[0049] c. Pour the material obtained in step a into the JJ-5 cement mortar mixer, dry mixing for 1 minute, first add the CaCl obtained in step b 2 Water solution, wet mixed for 3 minutes, then continue to add water and st...
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